By J. à těpek, H. Daoust (auth.)
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In the course of the years 1987 and 1988 we released a sequence of articles at the molding of thermoplastics fabrics within the journal British Plastics and Rubber (B P & R). those articles have been rather well got and we additionally got a number of requests for reprints. as a way to cater for what's evidently a necessity within the thermoplas tics molding undefined, we consequently introduced the data jointly and produced it within the kind of a e-book.
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This ebook is helping plastics designers and engineers resolve universal difficulties afflicting plastic components and molds. Moldflow pioneered injection molding simulation in 1978 and has helped over 5,000 brands make larger components swifter and with better revenue. even if you employ Moldflow software program or now not, this advisor is an vital software to realizing plastic movement, CAE research and effects, and cooling and deform results to help within the profitable layout and manufacture of elements and molds.
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Additional resources for Additives for Plastics
9% by weight. D, Other polymers, 6% by weight . A A main function of lubricants is to prevent polymers that have a tendency toward tackiness from sticking on metallic parts of processing machinery; this is external lubrication. Another important function is to provide internal lubrication to the polymer under processing to improve the free flow ofthe melt bulk polymer by reducing friction between chain segments. This allows, for example, the operation of the mixing process at a higher temperature for a better homogenization of the mixture of the polymer with additives.
2. , in contact with the plastic material. 5. Volatility of some plasticizers in plasticized PVC Plasticizer DCP DOP Dicyclohexyl phthalate DBS DOS Dibenzyl sebacate Source: Ref. 70. 8 32 1: Plasticizers 3. Contact with other materials in which the plasticizer is soluble and can easily penetrate. 4. Reaction of plasticizer with another substance. This depreciation of plastics materials is difficult to avoid. When necessary , it is possible in some cases to replace volatile plasticizers by macromolecular compounds, such as polyesters, poly(ethylene glycol) derivatives , epoxides, BAN rubbers, and so on.
Plast. Encycl. 56, 198 (1979-1980) 5. Pfahler, G. , Riedel, T. : Kunststoffe 66, 694 (1976) 6. Martino, R. : Mod. Plast. Encycl. 55, 51 (1978) 7. : Die Bestandigkeit von Plaste und Gummi. 2: Mold-Release Agents 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 49 Matlack, J. , Metzger, P. : J. Polyrn, Sci. : SPE J. 23, 71 (1967) Van Veersen, J. : Plastics 21,328 (1968) Andrews, K. E. , Wain, B. J. : Brit. Plast. : Plast. Kaustch. : Polim. Tworz .
Additives for Plastics by J. à těpek, H. Daoust (auth.)